This optional kit is designed to raise the Mini and Universal Co-Sleepers to properly fit your bed. The Leg Extensions raise the Co-Sleeper in 2" increments starting at 24" (normal bed height) to 30" (pillow top bed height). When full 6" extensions are used, you will find the Mini Co-Sleeper Bassinet to be a comfortable bassinet or changing table. Please Note: For safety reasons only one leg extension should be used.